Home / 21,585.37-29,785.66-15,923.19

Finding the Fourth Proportional to 21,585.37, 29,785.66 and 15,923.19

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Solution

The fourth proportional to 21,585.37, 29,785.66 and 15,923.19 is: 21,972.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,585.37 : 29,785.66 = 15,923.19 : x
  2. Step 2: Convert to fraction form
    21,585.37/29,785.66 = 15,923.19/x
  3. Step 3: Cross multiply
    21,585.37x = 29,785.66 × 15,923.19
  4. Step 4: Simplify right side
    21,585.37x = 474,282,723.46
  5. Step 5: Solve for x
    x = 474,282,723.46/21,585.37
  6. Step 6: Final answer
    x = 21,972.42

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Half scale
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Double scale
Find fourth proportional to 21,586.37, 29,787.04 and 15,924.19
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.